【单选题】
Conservation or wasted Effort?
The black robin(旅鸫)is one of the world’s rarest birds．It is a small，wild bird，and it lives only on the island of Little Mangere，off the coast of New Zealand．In 1967 there were about fifty black robins there；in 1977 there were fewer than ten．_____(46)
Energetic steps are being taken to preserve the black robin．_____(47)The idea is to buy another island nearby as a special home，a“reserve”，for threatened wild life，including black robins．The organizers say that Little Mangere should then be restocked(重新准备)with the robin’s food．Thousands of the required plants are at present being cultivated in New Zealand．
Is all this concern a waste of human effort? what is reasonable and what is unreasonable?_____(48)Are we losing our sense of
In the earth’s long，long past hundreds of kinds of creatures have evolved，risen to a degree of success and died out．In the long，long future there will be many new and different forms of life．Those creatures that adapt themselves successfully to what the earth offers will survive for a long time．_____(49)This is nature’s proven method of operation．
The rule of selection--“the survival of the fittest”—-is the one by which human beings have themselves arrived on the scene．We，being ode of the most adaptable creatures the earth has yet produced，may last longer than most．_____(5O)You may take it as another rule that when，at last．human beings show signs of dying out，no other creature will extend a paw(爪)to postpone our departure．On the contrary, we will be hurried out．
Life seems to have grown too tough for black robins．I leave you to judge whether we should try to do anything about it．
A．Some creatures，certain small animals，insects and birds，will almost certainly outlast(比……长久)man，for they seem even more adaptable．
B．Those that fail to meet the challenges will disappear early．
C．Detailed studies are going on，and a public appeal for money has been made．
D．Both represent orders in the classification of life
E．Is it any business of ours whether the black robin survives or dies out?
F．These are the only black robins left in the world
网考网参考答案：F、C、E、B、A
网考网解析：
保护或无用功？ 黑知更鸟（旅鸫）是世界上最稀有的鸟类之一 它是一种小型 野生鸟类 它一生只在小曼格瑞岛 关新西兰海岸 1967年大约有50黑知更鸟有;1977年有超过10少 _____（46） 目前正在采取有力的步骤以保护黑循环赛 _____（47）的想法是就近购买另一岛屿作为一个特殊的家庭 一个“储备” 受威胁野生动物 包括黑鸟啼 组织者说 小曼格瑞则应重新进货（重新准备）与知更鸟的食物 成千上万的所需植物目前被种植在新西兰 都是这种担心浪费人力的努力？什么是合理的 哪些是不合理的？_____（48） 我们失去了我们的意识 在地球的漫长 早已过数百种生物的进化 上升到一定程度的成功 和死了 在很长很长的将来会有许多新的和不同的生命形式 成功地适应这些生物是什么大地报价将生存很长一段时间 _____（49）这是大自然的行之有效的操作方法 选择的规则 - “的适者生存” - 是一个由人类有自己赶到现场时 我们 适应性最强的生物在地球尚未产生 被颂歌可能持续更长的时间比大多数 _____（50）你可以把它当作另一条规则 当 最后 人类展现凋零的迹象 没有其他的生物也将伸出爪子（爪）推迟我们离开 相反 我们会便匆匆离开了 生活似乎已经长得太硬朗的黑色知更鸟 我让你来判断是否应该尝试做任何事情 A 有些生物 某些小动物 昆虫和鸟类 几乎肯定会拖垮（比......长久）的人 因为他们似乎更适应 B 那些不符合的挑战将消失年初 C 详细的研究正在进行 并已取得了金钱公开呼吁 D 无论是在生命的分类表示订单 E 它是我们的任何业务黑色知更鸟无论是生存还是死亡了呢？ F 这些都是留在世界上唯一的黑鸟啼 查看试题解析出处>>
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